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Materials Needed For Project: -Tennis Ball -Bottle(s) -Fins made of your cardboard -Garbage bag for Parachute -Tape -String
To build the rocket body you must use a 1 liter bottle where you would be able to apply the fins or whatever is necessary. The main bottle you sh...
Grab a cardboard box and flatten it so that you will have more access to draw out you fins. Once your fins are drawn out you should cut out those...
The parachute you want depends on the size of the garbage bag. First cut the seams of the garbage bag so the the garbage bag will open and is flat....
To make a cone you must have a power drill that you can attach a bottle too and have some sort of heating device. Start rotating the bottle so tha...
Once you have finished all the steps you must now put everything together the parachute should be folded not stuffed in the cone so that the parachute...
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I mean it's too heavy for a simple water-pumped- by-bike-pumper-rocket
should i or can i use a small rock instead of a tennis ball?
the rocket is already heavy you know
If the parachute remains in a dry section of the device, talcum powder may be a cheap and effective material that helps the plastic "chute" slide out easier.